:root{
  --teal:#0f766e; --teal-dark:#0b5951; --teal-light:#14b8a6;
  --ink:#1e293b; --slate:#475569; --muted:#64748b;
  --amber:#d97706; --amber-soft:#fef3e2;
  --bg:#f6f8f8; --card:#ffffff; --line:#e2e8f0; --line-soft:#eef2f4;
  --maxw:1120px; --prose:44rem;
  --shadow:0 1px 2px rgba(15,23,42,.04),0 8px 24px rgba(15,23,42,.06);
  --shadow-sm:0 1px 2px rgba(15,23,42,.06);
  --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background:var(--bg);
  font-family:"Source Sans 3",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:18px;line-height:1.7;-webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
a{color:var(--teal-dark);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
a:hover{color:var(--amber)}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{font-family:"Fraunces",Georgia,serif;line-height:1.18;color:var(--ink);font-weight:600}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--teal);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:100}
.skip-link:focus{left:0}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--teal),var(--teal-light));color:#fff;font-family:"Fraunces",serif;font-weight:700;font-size:22px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-family:"Fraunces",serif;font-size:19px;letter-spacing:.2px}
.brand-text small{color:var(--muted);font-size:12px;letter-spacing:.3px;text-transform:uppercase}
.site-nav ul{display:flex;flex-wrap:wrap;gap:2px;list-style:none;margin:0;padding:0;justify-content:flex-end}
.site-nav a{display:block;padding:8px 11px;border-radius:8px;color:var(--slate);text-decoration:none;font-weight:600;font-size:15px}
.site-nav a:hover{background:var(--line-soft);color:var(--teal-dark)}
.site-nav a.active{color:var(--teal-dark);background:var(--amber-soft)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:1px solid var(--line);border-radius:9px;padding:9px 10px;cursor:pointer}
.nav-toggle span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}

/* top banner */
.topbanner{background:var(--ink);color:#e9eef2;font-size:14.5px;line-height:1.5}
.topbanner .wrap{padding-top:9px;padding-bottom:9px}
.topbanner strong{color:#fff}

/* main / prose */
main{padding:0 0 64px}
.prose{max-width:var(--prose);margin:0 auto;padding:40px 0 0}
body.home .prose{max-width:var(--prose)}
.prose h1{font-size:2.5rem;margin:.2em 0 .5em;font-weight:700;letter-spacing:-.5px}
.prose h2{font-size:1.55rem;margin:2em 0 .55em;padding-top:.2em}
.prose h3{font-size:1.2rem;margin:1.6em 0 .4em}
.prose p{margin:0 0 1.15em}
.prose ul,.prose ol{margin:0 0 1.25em;padding-left:1.3em}
.prose li{margin:.35em 0}
.prose strong{color:var(--ink)}

/* safety callout */
.page-note{background:var(--amber-soft);border:1px solid #f4d7a8;border-left:4px solid var(--amber);
  border-radius:12px;padding:16px 18px;font-size:16px;color:#5b3a12;margin:0 0 1.6em}
.page-note strong{color:#7a3d05}

/* figures */
.page-figure{margin:1.6em 0 1.9em}
.page-figure img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--line)}

/* home hero emphasis on first figure */
body.home .prose>.page-figure:first-of-type img{aspect-ratio:16/9;object-fit:cover}

/* footer */
.site-footer{background:#0c2b28;color:#c9d8d5;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:32px;padding:48px 20px 28px}
.footer-about{max-width:38ch}
.footer-about .brand-mark{margin-bottom:12px}
.footer-about p{font-size:15px;color:#a9c1bd;margin:0}
.footer-about strong{color:#fff}
.footer-links h2{font-family:"Source Sans 3",sans-serif;font-size:13px;text-transform:uppercase;letter-spacing:.12em;color:#7fb3ab;margin:4px 0 12px;font-weight:700}
.footer-links ul{list-style:none;margin:0;padding:0}
.footer-links li{margin:.5em 0}
.footer-links a{color:#d8e6e3;text-decoration:none;font-size:15px}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-legal{background:#081f1c;border-top:1px solid rgba(255,255,255,.06)}
.footer-legal .wrap{padding:22px 20px}
.disclaimer{font-size:13px;line-height:1.6;color:#8fa8a4;margin:0 0 10px}
.disclaimer strong{color:#c6d6d3}
.copyright{font-size:13px;color:#7c948f;margin:0}
.copyright a{color:#9fc0bb}

/* nav responsive */
@media (max-width:900px){
  .nav-toggle{display:flex}
  .site-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .site-nav.open{display:block}
  .site-nav ul{flex-direction:column;padding:8px;gap:2px}
  .site-nav a{padding:11px 14px;font-size:16px}
  .header-inner{position:relative}
}
@media (max-width:720px){
  body{font-size:17px}
  .prose{padding-top:28px}
  .prose h1{font-size:2rem}
  .prose h2{font-size:1.35rem}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding:36px 20px 20px}
}

/* progressive-enhancement safeguard: never hide content waiting on JS */
[data-aos]{opacity:1 !important;transform:none !important}
.prose{animation:fadein .4s ease both}
@keyframes fadein{from{opacity:0}to{opacity:1}}
@media (prefers-reduced-motion:reduce){.prose{animation:none}}